I am modeling a tower in rhino. And in some files, when I use the rendering display mode, a black and white background is reflected in the windows. The reflection is not smooth (gradient from black to white) but very sharp. As if there was a big rectangle of light somewhere.
I changed the background to a single color but it makes no difference. Do you have any idea how I can turn off the reflection or at least get rid of that sharp separation between black and white?